The build quality of this lens is superb. It is very massive but much less than a Zeiss Otus. The aperture and focus ring are a pleasure to use. The AF is quite fast but not very fast and you can hear it in silent situation.

What you see in the chromatic aberration example here is NOT in fact chromatic aberration. It’s Pixel Blooming from your sensor which, in my experience, the A7R2 does not handle very well at all. Chromatic aberrations tend to occur at the edges of frames which is not the case here. I have the 85 f1.4 GM and I use it on an A9, and I can assure you that Chromatic aberration is practically zero with this lens.